Essence Warden

Whenever another creature enters, you gain 1 life.

Spore Frog

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Forest

Ant Queen

{1}{G}: Create a 1/1 green Insect creature token.

Concordant Crossroads

Harrow

As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Cryptolith Rite

Creatures you control have "{T}: Add one mana of any color."

Parallel Lives

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

Elvish Mystic

Llanowar Elves

Khalni Heart Expedition

Landfall — Whenever a land you control enters, you may put a quest counter on Khalni Heart Expedition.
Remove three quest counters from Khalni Heart Expedition and sacrifice it: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.